QA Automation Engineer - Build Test Framework (Java/Cucumber)

Company IconOpus Recruitment Solutions
Location IconLondon

Opus Recruitment Solutions is seeking a Software QA Engineer for a 6-month contract in London, with on-site work two days per week. The role focuses on building a test automation framework from scratch using Java, Selenium and Cucumber, and delive...Read More>>.

Posted: September 5th, 2026
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Graduate R&D Engineer: Build & Scale Real Hardware

Company IconSF Partners
Location IconTyseley

SF Partners partners with a UK technology start-up to develop an AI-enabled consumer product, moving from development into production in Birmingham and targeting international markets. This Graduate R&D Engineer role offers hands-on exposure acros...Read More>>.

Posted: September 6th, 2026
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Graduate Software Engineer - Build Real-World Defence Tech

Company Icontargetjobs UK
Location IconWarton

BAE Systems invites graduates to join a non-rotational graduate programme, where you will design and develop software from day one, contributing across the full lifecycle from design to integration. You will help create complex real‑world system...Read More>>.

Posted: September 24th, 2026
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Quantitative Research Engineer: Build Fast, Trading-Ready Systems

Company IconDRW Holdings, LLC
Location IconGreenwich

DRW seeks a Research Engineer for our Greenwich, CT office to join a fast-moving team of technologists, researchers and traders. You will implement research studies, simulate strategies, and build robust engineering solutions embedded with traders...Read More>>.

Posted: October 3rd, 2026
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ML Engineer: Build Real-World Marketing AI (Hybrid)

Company Iconsystem1
Location Icon

System1 is looking for a pragmatic Machine Learning Engineer to join a product team and help build the models powering our Ad, Brand and Innovation products. You will work with text, image and video data, turning hard prediction problems into depl...Read More>>.

Posted: October 3rd, 2026
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Markets Operations AI Engineer — Build Production-Ready AI

Company IconJPMorgan Chase & Co.
Location IconLondon

JPMorgan Chase & Co. seeks an Applied AI Engineer to shape AI solutions for Markets Operations.You will design, build, test, and deploy scalable AI services integrated with strategic systems, collaborating with software engineers, AI and da...Read More>>.

Posted: October 4th, 2026
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Product Engineer: Build High-Impact Open Banking Platforms

Company IconUnited States Digital Space LLC
Location IconLondon

United States Digital Space LLC is seeking a product engineer to help us build world-class features for millions of users in the UK. You’ll own end-to-end problems, collaborate with product, design, and engineering, and ship high-impact improvem...Read More>>.

Posted: October 4th, 2026
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Applied AI Engineer: Build Scalable AI Services & Pipelines

Company IconHackajob Ltd
Location IconLeeds

Hackajob Ltd. is hiring an Applied AI Engineer for the Markets Operations domain to build production-ready AI services and infrastructure. You will collaborate across engineers, AI specialists, and operations partners to translate processes into p...Read More>>.

Posted: October 4th, 2026
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Client-Facing AI Engineer: Build & Ship AI Agents

Company IconFifty One Degrees AI Limited
Location IconLondon

Fifty One Degrees is seeking a hands-on production engineer to join our remote-first team and deliver end-to-end AI-enabled client projects. You will ship features from idea to production, collaborating closely with client teams and internal engin...Read More>>.

Posted: October 4th, 2026
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Senior ML Platform Engineer — Build a Scalable Risk Platform

Company IconWise
Location Icon

Wise is building the next-generation ML platform for financial crime detection. We seek a Senior ML Platform Engineer to design and implement scalable, reusable infrastructure that lets data scientists focus on model improvements.You will o...Read More>>.

Posted: October 4th, 2026
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Senior AI Engineer - Build Production-Ready AI Agents

Company IconGradient Labs
Location IconLondon

Gradient Labs is building an AI customer operations platform for financial services. We craft agentic systems that handle live conversations and back-office tasks at scale, with a focus on reliability, observability, and business value.We v...Read More>>.

Posted: September 5th, 2026
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Senior GenAI Engineer: Build Production-Grade AI Features

Company IconUnited States Digital Space LLC
Location IconLondon

Motorway is seeking a Senior GenAI Engineer to build AI applications and agentic workflows across the GenAI stack. You will own AI features from problem framing to production, including retrieval, evaluation, and monitoring, with emphasis on relia...Read More>>.

Posted: September 6th, 2026
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Lead Software Engineer — Build AI-Driven Payments SaaS

Company IconCorpay
Location Icon

Corpay is seeking a Lead Software Engineer in our Epyx division to design and deliver scalable SaaS applications across r2cOnline and 1link.You will mentor engineers, drive architectural roadmaps, and collaborate with product and design tea...Read More>>.

Posted: September 6th, 2026
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iOS Engineer — Build a scalable, SwiftUI-based family app

Company IconYoto
Location IconLondon

Yoto is seeking an iOS Engineer to own and evolve the app experience used by millions of families. You will work on features, performance and stability as we migrate screens to SwiftUI, collaborating with product managers, designers and other engi...Read More>>.

Posted: September 15th, 2026
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Senior Frontend Engineer — Build Scalable, User-Focused UI

Company IconUnited States Digital Space LLC
Location IconLondon

United States Digital Space LLC is seeking a Senior Frontend Engineer to solve complex problems and enhance our platform in London. As part of a fast-growing company, your contributions will help disrupt the home cleaning market by building scalab...Read More>>.

Posted: September 15th, 2026
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Senior Data Engineer: Build Azure Data Platform & Reporting

Company IconRise Technical Recruitment
Location IconAncoats

Rise Technical Recruitment is seeking a Senior Data Engineer in Manchester, working three days a week in the office. You will build Azure-based data platforms from the ground up, developing data models and reporting architectures to support board-...Read More>>.

Posted: September 22nd, 2026
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UK Data Engineer: Build Production Pipelines for AI Lab

Company IconMercor
Location IconLondon

Mercor is recruiting UK-based Data Engineers for a short, intensive project with a globally leading AI lab. You will produce the professional data products and deliverables you create daily, working alongside experts from adjacent domains.Y...Read More>>.

Posted: September 22nd, 2026
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Senior AI Engineer: Build Scalable AI-Powered Assistants

Company IconFutureheads Recruitment | B Corp™
Location IconLondon

Futureheads Recruitment | B Corp™ partners with an AI-first technology company building intelligent assistants that help users automate workflows and manage tasks. We’re seeking a Senior AI Engineer to turn cutting-edge models into production-...Read More>>.

Posted: September 22nd, 2026
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Senior Data Engineer: Build High-Scale Pipelines on GCP

Company IconBlis
Location IconLondon

Blis, a global leader in big data analytics and advertising, is seeking experienced Data Engineers in London. You will design and build secure, scalable data pipelines on GCP, handling petabytes of data and millions of requests per second....Read More>>.

Posted: September 22nd, 2026
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Senior AI Engineer — Build a Greenfield Platform (London Hybrid)

Company IconBunch
Location IconLondon

Bunch in Greater London is seeking a Senior AI Engineer to own product features and systems end-to-end. You'll build a greenfield AI platform, report to the Head of Engineering, and have direct input into technical direction from day one.Th...Read More>>.

Posted: September 22nd, 2026
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Enterprise AI Engineer — Build Production-Grade Digital Workers

Company IconSpace Executive
Location IconLondon

Space Executive is recruiting an AI Engineer to build and deploy enterprise-grade AI systems and digital workers in production. You’ll partner with global organisations to untangle complex workflows and translate them into reliable, scalable age...Read More>>.

Posted: September 22nd, 2026
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Senior AWS Data Engineer: Build Secure Data Platforms

Company IconUBDS Digital
Location IconLondon

UBDS Group's Rayo unit is seeking a Senior Data Engineer with strong AWS expertise to design, build and deliver scalable data platforms and pipelines within AWS. You will work with architects, security specialists and client teams to translate req...Read More>>.

Posted: September 22nd, 2026
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Senior Mobile SDK Engineer — Build Scalable Game SDKs

Company IconMetica Trading Limited
Location IconLondon

Metica, an AI-native growth partner for mobile games, seeks a senior mobile engineer to build and evolve the SDK that ships inside our customers' games. The role is SDK work, not app work, with ownership from API design to live support. Based in-o...Read More>>.

Posted: September 22nd, 2026
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Salesforce AI Engineer: Build AI-Driven Enterprise Apps

Company IconCAPGEMINI
Location IconLondon

Capgemini UK is seeking a Salesforce AI Engineer to design, build and ship AI features on the Salesforce platform for leading organisations. You will work hands-on with Agentforce, Einstein, Prompt Builder, Model Builder and Data Cloud to create A...Read More>>.

Posted: September 22nd, 2026
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Senior Data Engineer: Build Platform & AI for Net Zero

Company IconOctopus Energy Group
Location IconLondon

Octopus Electric Vehicles is seeking a Senior Data Engineer to lead and evolve our data platform and pipelines, delivering reliable data foundations for analytics and ML workloads. You’ll work across squads to ingest data, optimize architecture,...Read More>>.

Posted: September 22nd, 2026
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RAG & AI Data Engineer: Build Scalable AI Pipelines

Company IconDiagonal recruitment
Location IconLondon

Diagonal recruitment is looking for a skilled candidate to design and build data pipelines to support AI applications. You will develop Retrieval-Augmented Generation (RAG) architectures and create vector databases to enhance data retrieval and pe...Read More>>.

Posted: September 22nd, 2026
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Full-Stack Engineer: Build Global Digital Platforms & APIs

Company IconLeep Talent Limited
Location IconLondon

Leep Talent Limited is seeking a proficient Full Stack Developer to contribute to a global digital transformation. You will develop and maintain React front-ends and server-side APIs using .NET/C#, while building integrations with Salesforce and C...Read More>>.

Posted: September 22nd, 2026
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Snowflake Data Engineer: Build Scalable AI-Ready Pipelines

Company IconThe Travel Corporation
Location IconLondon

The Travel Corporation in London, UK is seeking a Data Engineer to help build the modern data foundations behind TTC's growing Data and AI capability. You will design and develop scalable pipelines and trusted data products across customer, bookin...Read More>>.

Posted: September 22nd, 2026
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AI Demo Engineer: Build Self-Service, Scalable Demos

Company IconZipHQ, Inc.
Location IconLondon

ZipHQ, Inc. is seeking a technical demo engineer to own demo environments and develop frameworks for Solution Engineers.This hands-on role involves building self-service tooling, shaping demo narratives, and collaborating with various teams...Read More>>.

Posted: September 22nd, 2026
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Hybrid AI Engineer: Build AI for Faster Child Assessments

Company IconPaloma Health
Location IconLondon

Paloma Health is seeking a talented AI Engineer to join its AI squad within the product and engineering teams. You will help shape evaluation culture, tooling choices, and growth of Paloma's AI capabilities in England, collaborating with clinician...Read More>>.

Posted: September 22nd, 2026
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Senior Data Engineer: Build Scalable Pipelines & AI Data

Company IconSolirius Reply
Location IconLondon

Solirius Reply is seeking a Senior Data Engineer in the United Kingdom to design, build, and maintain data pipelines and models. You will collaborate with data scientists, analysts, and stakeholders to ensure data quality and enable effective anal...Read More>>.

Posted: September 26th, 2026
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Core Data Engineer: Build Scalable Pipelines & ML Ops

Company IconThe BDPN
Location IconLondon

Fospha, a world-leading measurement platform for online retail, invites a Core Data Engineer to design, build and optimise data pipelines, data models, and governance across analytics and ML workflows in London.You will own reliability and...Read More>>.

Posted: September 26th, 2026
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Founding Analytics Engineer - Build a Self-Serve Data Platform

Company IconDex
Location IconLondon

Dex is hiring the first dedicated data hire in London to own data models, pipelines, and the data platform powering the business. You will shape the data foundation, ensure data quality, and enable self-serve access for product, growth, and opera...Read More>>.

Posted: September 26th, 2026
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Full-Stack Engineer: Build, Ship & Elevate UIs & APIs

Company IconSharp End Partnership, Ltd.
Location IconLondon

Sharp End Partnership, Ltd. is hiring a mid-level Full-Stack Developer to join the studio’s engineering team. You’ll split time between frontend and backend work, turning high-fidelity concepts into real products across web and mobile platform...Read More>>.

Posted: September 30th, 2026
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Senior Data Platform Engineer — Build & Scale Data Systems

Company IconSetec Alpha
Location IconLondon

Setec Alpha, based in London, is seeking a Data Engineer to design and develop data-intensive platforms and scalable software solutions. You will own data pipelines and contribute to building robust, observable infrastructure in a fast-paced hedge...Read More>>.

Posted: October 2nd, 2026
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Junior Software Engineer: Build Real-World Insurance Platforms

Company IconHowden Insurance Brokers Australia
Location IconLondon

Howden Insurance Brokers Australia is seeking a Junior Software Engineer to join the Broking Operations team and support the ongoing development of Howden Bridge, our online quote-and-bind platform.You will work with experienced engineers t...Read More>>.

Posted: October 2nd, 2026
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Production AI Engineer: Build Scalable AI & LLM Systems

Company IconXelix
Location IconLondon

Xelix is hiring an AI Engineer to design and build production AI systems, combining ML, LLMs, and strong software engineering. You will work across documents, email, and financial data to create reliable, scalable AI workflows.The role focu...Read More>>.

Posted: October 2nd, 2026
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Senior AI Product Engineer - Build Production AI Tools

Company IconNuffield Health Guildford Hospital
Location IconLondon

Nuffield Health is seeking a Senior Software Engineer (AI products) to identify, design and deliver AI-powered tools that solve real business problems. You will work with stakeholders to prototype, validate and productionize solutions in a hybrid...Read More>>.

Posted: October 3rd, 2026
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Senior Full-Stack Engineer — Build the Money Management App

Company IconWayfindi
Location IconLondon

Emma, based in London, seeks a seasoned full-stack engineer to own backend and mobile/web app development. You’ll contribute to a dynamic roadmap with new features and integrations, collaborating across teams to deliver high-quality code....Read More>>.

Posted: October 3rd, 2026
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Senior Optical Engineer - Build Next-Gen Defence Optics

Company IconQinetiQ Limited
Location IconMalvern

QinetiQ Limited in Malvern is seeking a Senior Optical Engineer to lead the design and industrialisation of advanced optical systems for defence and security. You will drive optical modelling, tolerance analyses and integration from prototype to p...Read More>>.

Posted: October 3rd, 2026
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Senior Backend Engineer — Build a Global Spring Boot Hub

Company Icontoogoodtogo
Location IconLondon

Too Good To Go is building a brand-new engineering hub in London, and we are looking for foundational Senior Backend Software Engineers to help us kick it off. This is a unique opportunity: you will be joining a completely new team, building a new...Read More>>.

Posted: October 4th, 2026
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Finance AI Engineer: Build Production-Grade LLM Apps

Company Icon3003 Accenture (UK) Limited Company
Location IconLondon

Accenture is seeking an AI Engineer in the Finance practice to design, build and operate production-grade AI applications. You will work with complex enterprise data and finance processes, translating CFO needs into secure, observable software wit...Read More>>.

Posted: October 4th, 2026
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Rust Engineer: Build High-Performance Systems & Real Impact

Company IconRustify
Location Icon

Oho Group in the United Kingdom is searching for a mid-level Rust Engineer to join a fast-growing technology team. You’ll own features from design through production and contribute to high-performance systems.You'll bring Rust experience...Read More>>.

Posted: October 4th, 2026
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Senior Data Engineer: Build Modern Data Pipelines (Hybrid)

Company IconInstil
Location IconNorthern Ireland

Instil is seeking a Senior Data Engineer to design, build, and scale modern data platforms that empower analytics, AI, and data-driven decision-making. You will work hands-on to create robust data pipelines and data models, with strong SQL, Python...Read More>>.

Posted: October 4th, 2026
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Full-Stack Ruby Engineer — Build Impactful Fertility Tech

Company IconMMC
Location IconLondon

wawa fertility in London is seeking a Full Stack Ruby Engineer to join our hybrid team. You’ll build end-to-end features across the stack, collaborating with clinicians and designers to deliver fast, intuitive interfaces that scale across 14+ co...Read More>>.

Posted: October 4th, 2026
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Senior Data Engineer: Build Secure, Scalable Data Pipelines

Company Icon73 Strings SAS
Location IconCity of Westminster

73 Strings SAS is seeking a Senior Data Engineer to design, build and operate the pipelines and warehouse that support valuation and monitoring. You will own production pipelines from source capture through transformation to client delivery, under...Read More>>.

Posted: October 4th, 2026
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Full-Stack Engineer - Build Fast, Scalable Web Apps

Company IconTusk
Location IconCity of Edinburgh

FanDuel Group is seeking a full-stack software engineer to join our Account vertical within Core Products and Experiences, delivering customer journeys across FanDuel products and enabling sign-up and management of user accounts for millions of pl...Read More>>.

Posted: October 4th, 2026
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Full-Stack Engineer: Build React/Java Search & Discovery

Company IconRandstad Technologies
Location IconLancashire

Randstad Technologies in Manchester is seeking a hands-on Full Stack Engineer to join our Search & Discovery squad. You will work with technical leads, product managers, and UI/UX designers to build and enhance features powering our core customer...Read More>>.

Posted: October 4th, 2026
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AI-Driven Python Engineer: Build Intelligent Agents (Hybrid)

Company IconClient Server Limited
Location IconLondon

Client Server Limited in London is seeking a Python Software Engineer / Developer to work on agentic AI systems. You will develop backend code and APIs, with a focus on prompt engineering and LLM integrations, collaborating with the Technical Arch...Read More>>.

Posted: October 4th, 2026
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Front End Engineer - Build Impactful Web Apps (Hybrid)

Company IconFree-Work
Location IconScotland

CGI is seeking a Front End Software Engineer to design and build high‑performing web applications in Scotland. You will work within a growing Software Engineering Capability team, collaborating with talented colleagues on meaningful projects and...Read More>>.

Posted: October 4th, 2026
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